Pith Number

pith:MY44YSJI

pith:2011:MY44YSJIDZFKEOZ6TJRUFNK5UB

not attested not anchored not stored refs pending

The PITA System: Tabling and Answer Subsumption for Reasoning under Uncertainty

Fabrizio Riguzzi, Terrance Swift

arxiv:1107.4747 v1 · 2011-07-24 · cs.AI · cs.LO · cs.PL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MY44YSJIDZFKEOZ6TJRUFNK5UB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:17:01.914280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6639cc49281e4aa23b3e9a6342b55da050a8fae3952509057d0abec1d1d198de

Aliases

arxiv: 1107.4747 · arxiv_version: 1107.4747v1 · doi: 10.48550/arxiv.1107.4747 · pith_short_12: MY44YSJIDZFK · pith_short_16: MY44YSJIDZFKEOZ6 · pith_short_8: MY44YSJI

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/MY44YSJIDZFKEOZ6TJRUFNK5UB \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6639cc49281e4aa23b3e9a6342b55da050a8fae3952509057d0abec1d1d198de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7398936d6c3bbc13aabbd0fe57dd5026add11ec2b93cd78dd3831574257b89d8",
    "cross_cats_sorted": [
      "cs.LO",
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2011-07-24T11:22:41Z",
    "title_canon_sha256": "fcee82d8937a8ab094384e87d252b7ed36b7edfa505b25a847558197a5a7f963"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4747",
    "kind": "arxiv",
    "version": 1
  }
}